Use an exacto blade to cut the paper to exact shape of the letter. You can place the paper on a cutting surface with the letter laying directly on top, then carefully cut around the letter. Use the glue stick to attach the paper to the letter. The washi tape will be applied to each edge of the letter by placing 1/2 on the top side, then folding the tape to the side of the letter.
That's all there is to it! Your project is finished and ready to display.